Ford Excursion 3.73 vs 4.10 rear end?

Last post on Jul 29, 2008 at 3:49 PM

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#1 of 1 3.73 vs 4.10 rear end? by dyestar Jul 29, 2008 (3:49 pm)
With the power of the 6.0 diesel is there really that much noticeable difference? And if so is it worth spending the $ to do so? Or would it be better to upgrade to some kind of chip on my 03 X? Thanks, Jimmy D